I think it is important to be honest with what type theory... and personality... means. There will be "better" characteristics, no matter how much you hide it... not because they are inherently so, but because the values of society and such always have a preference.
For example, saying that S and Ns are equally intelligent requires disclaimers because Ns do have quite an edge on Ss as far as IQ goes, along with quite a few other performance measurements.
But it is a real mistake, an N mistake ironically, to apply broad statistics to individuals.
Understanding the influences, etc is important but it is very easy to fall into cognitive biases, such as Ns over-valuing their own traits and under estimating Ss... and that's what happens. For example, it's easy to show that Ns are not particularly more successful - they don't dominate rank or monetary values... not even academic circles. It just depends on what you are measuring and how it relates.
Just ask how you change when you see something you dislike - for example, a perceived SJ trait. It has been shown here and elsewhere that we project traits that we want to see... group identity, etc. I learned about that first hand.
As for the beating things into the "S", I can't tell you how irritating it is to have someone say "The sky is red because..." and simply put their hands on their ears and chant "my logic is good! my logic is good!". Ns are smarter, if you go by IQ, but they aren't very efficient. In that sense, they are downright stupid. Ss carve a more direct line to what they want... Sometimes it can be good, sometimes not so good.
An example from this board is the degree of knowledge that the Ss tend to have on the topic they are talking about versus the knowledge that the entire Ns have. Ns will claim something without any backing at all - just a thought, an opinion, etc. Very rare is it validated. I find this common among Ns in RL as well. If I want to know how to do something, it's a straight line - I figure what I have to do, then do it... least until I get distracted
Only INTJs seem to have that trait, and often it is... how do you say... less direct and more "my way".